Forces, Simple machines, and Motion

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Across
  1. 4. force applied to the machine
  2. 6. device that makes doing work easier
  3. 8. the rate at which work is done
  4. 9. bar that is free to pivot around a fixed point
Down
  1. 1. the measure of how much work put into a machine is changed into useful output work by the machine
  2. 2. the force applied by the machine
  3. 3. consists of an axel that attaches to the center of a larger wheel so that the wheel and axel rotate together
  4. 5. grooved wheel with a rope, chain or cable running along a groove
  5. 7. the transfer of energy that occurs when a force makes an object move